diff options
Diffstat (limited to 'thirdparty/openssl/crypto/des/fcrypt.c')
| -rw-r--r-- | thirdparty/openssl/crypto/des/fcrypt.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/des/fcrypt.c b/thirdparty/openssl/crypto/des/fcrypt.c new file mode 100644 index 0000000000..111f1e4617 --- /dev/null +++ b/thirdparty/openssl/crypto/des/fcrypt.c @@ -0,0 +1,167 @@ +/* NOCW */ +#include <stdio.h> +#ifdef _OSD_POSIX +# ifndef CHARSET_EBCDIC +# define CHARSET_EBCDIC 1 +# endif +#endif +#ifdef CHARSET_EBCDIC +# include <openssl/ebcdic.h> +#endif + +/* + * This version of crypt has been developed from my MIT compatible DES + * library. Eric Young (eay@cryptsoft.com) + */ + +/* + * Modification by Jens Kupferschmidt (Cu) I have included directive PARA for + * shared memory computers. I have included a directive LONGCRYPT to using + * this routine to cipher passwords with more then 8 bytes like HP-UX 10.x it + * used. The MAXPLEN definition is the maximum of length of password and can + * changed. I have defined 24. + */ + +#include "des_locl.h" + +/* + * Added more values to handle illegal salt values the way normal crypt() + * implementations do. The patch was sent by Bjorn Gronvall <bg@sics.se> + */ +static unsigned const char con_salt[128] = { + 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, + 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, + 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, + 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, + 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, + 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF, 0x00, 0x01, + 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, + 0x0A, 0x0B, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, + 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, + 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, + 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, + 0x23, 0x24, 0x25, 0x20, 0x21, 0x22, 0x23, 0x24, + 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, + 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, + 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, + 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, +}; + +static unsigned const char cov_2char[64] = { + 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, + 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, + 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, + 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, + 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x61, 0x62, + 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, + 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, + 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A +}; + +char *DES_crypt(const char *buf, const char *salt) +{ + static char buff[14]; + +#ifndef CHARSET_EBCDIC + return (DES_fcrypt(buf, salt, buff)); +#else + char e_salt[2 + 1]; + char e_buf[32 + 1]; /* replace 32 by 8 ? */ + char *ret; + + /* Copy at most 2 chars of salt */ + if ((e_salt[0] = salt[0]) != '\0') + e_salt[1] = salt[1]; + + /* Copy at most 32 chars of password */ + strncpy(e_buf, buf, sizeof(e_buf)); + + /* Make sure we have a delimiter */ + e_salt[sizeof(e_salt) - 1] = e_buf[sizeof(e_buf) - 1] = '\0'; + + /* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */ + ebcdic2ascii(e_salt, e_salt, sizeof e_salt); + + /* Convert the cleartext password to ASCII */ + ebcdic2ascii(e_buf, e_buf, sizeof e_buf); + + /* Encrypt it (from/to ASCII) */ + ret = DES_fcrypt(e_buf, e_salt, buff); + + /* Convert the result back to EBCDIC */ + ascii2ebcdic(ret, ret, strlen(ret)); + + return ret; +#endif +} + +char *DES_fcrypt(const char *buf, const char *salt, char *ret) +{ + unsigned int i, j, x, y; + DES_LONG Eswap0, Eswap1; + DES_LONG out[2], ll; + DES_cblock key; + DES_key_schedule ks; + unsigned char bb[9]; + unsigned char *b = bb; + unsigned char c, u; + + /* + * eay 25/08/92 If you call crypt("pwd","*") as often happens when you + * have * as the pwd field in /etc/passwd, the function returns + * *\0XXXXXXXXX The \0 makes the string look like * so the pwd "*" would + * crypt to "*". This was found when replacing the crypt in our shared + * libraries. People found that the disabled accounts effectively had no + * passwd :-(. + */ +#ifndef CHARSET_EBCDIC + x = ret[0] = ((salt[0] == '\0') ? 'A' : salt[0]); + Eswap0 = con_salt[x] << 2; + x = ret[1] = ((salt[1] == '\0') ? 'A' : salt[1]); + Eswap1 = con_salt[x] << 6; +#else + x = ret[0] = ((salt[0] == '\0') ? os_toascii['A'] : salt[0]); + Eswap0 = con_salt[x] << 2; + x = ret[1] = ((salt[1] == '\0') ? os_toascii['A'] : salt[1]); + Eswap1 = con_salt[x] << 6; +#endif + + /* + * EAY r=strlen(buf); r=(r+7)/8; + */ + for (i = 0; i < 8; i++) { + c = *(buf++); + if (!c) + break; + key[i] = (c << 1); + } + for (; i < 8; i++) + key[i] = 0; + + DES_set_key_unchecked(&key, &ks); + fcrypt_body(&(out[0]), &ks, Eswap0, Eswap1); + + ll = out[0]; + l2c(ll, b); + ll = out[1]; + l2c(ll, b); + y = 0; + u = 0x80; + bb[8] = 0; + for (i = 2; i < 13; i++) { + c = 0; + for (j = 0; j < 6; j++) { + c <<= 1; + if (bb[y] & u) + c |= 1; + u >>= 1; + if (!u) { + y++; + u = 0x80; + } + } + ret[i] = cov_2char[c]; + } + ret[13] = '\0'; + return (ret); +} |